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Suppressing soil-borne diseases of container-grown plants using composts
Year:
2011
Source of publication :
Acta Horticulturae
Authors :
Raviv, Michael
;
.
Volume :
893
Co-Authors:
Raviv, M., Department of Environmental Horticulture, Newe Ya'ar Research Center, Agricultural Research Organization, PO Box 1021, Ramat Yishay 30095, Israel
Facilitators :
From page:
169
To page:
182
(
Total pages:
14
)
Abstract:
Although most substrates are initially pathogen-free, infestations by root pathogens during the course of the growing cycle are common. If not deliberately treated, peat moss, an important organic medium constituent, is conducive to spread of several pathogens. Contrary to peat, some compost types suppress a wide variety of soil-borne pathogens. Compost is a term describing organic matter that has undergone long, thermophilic, aerobic decomposition a.k.a. composting. In many, but not all cases, disease suppressiveness is associated with compost's degree of maturity. The main suppressiveness causal agents are consortia of microbial and fungal populations, which colonize the compost mainly during the curing stage. Sterilization largely negates compost suppressiveness, strengthening the notion that biological activity is responsible for most of this phenomenon. Residual nonbiological activity is probably related to fungistatic compounds, present in some compost types. The use of composts as disease suppressive components of growing media is discussed in relation to the nature of the raw materials, methods of composting and effective application rates. The main constraints for compost use in growing media are its salinity, pH and physical characteristics. Examples of compost suppressiveness against a wide variety of microorganisms are described and putative mechanisms are critically discussed. Required future research is highlighted.
Note:
Related Files :
biological activity
Bryophyta
growing media
Pathogens
Peat moss
Sphagnum
Suppressiveness
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Related Content
More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
Conference paper
;
.
Language:
English
Editors' remarks:
ID:
31112
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:59
Scientific Publication
Suppressing soil-borne diseases of container-grown plants using composts
893
Raviv, M., Department of Environmental Horticulture, Newe Ya'ar Research Center, Agricultural Research Organization, PO Box 1021, Ramat Yishay 30095, Israel
Suppressing soil-borne diseases of container-grown plants using composts
Although most substrates are initially pathogen-free, infestations by root pathogens during the course of the growing cycle are common. If not deliberately treated, peat moss, an important organic medium constituent, is conducive to spread of several pathogens. Contrary to peat, some compost types suppress a wide variety of soil-borne pathogens. Compost is a term describing organic matter that has undergone long, thermophilic, aerobic decomposition a.k.a. composting. In many, but not all cases, disease suppressiveness is associated with compost's degree of maturity. The main suppressiveness causal agents are consortia of microbial and fungal populations, which colonize the compost mainly during the curing stage. Sterilization largely negates compost suppressiveness, strengthening the notion that biological activity is responsible for most of this phenomenon. Residual nonbiological activity is probably related to fungistatic compounds, present in some compost types. The use of composts as disease suppressive components of growing media is discussed in relation to the nature of the raw materials, methods of composting and effective application rates. The main constraints for compost use in growing media are its salinity, pH and physical characteristics. Examples of compost suppressiveness against a wide variety of microorganisms are described and putative mechanisms are critically discussed. Required future research is highlighted.
Scientific Publication
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